1) 2/4 = 1/2 18/27 = 2/3 4/8 = 1/2 6/15 = 2/5
21/16 = 21/16 10/14 = 5/7 12/21 = 4/7 12/16 = 3/4
3/9 = 1/3 9/12 = 3/4 16/21 = 16/21 18/24 = 3/4
2) 20/16 = 5/4 8/5 = 8/5 12/60 = 1/5 15/131 = 15/131
32/128 =1/4 140/22 = 70/11 7/140 = 1/20 144/12 = 12
35/84 = 5/12 35/15 = 7/3
3) 42/32 = 21/16 36/84 = 3/7 43/98 = 43/98 90/75 = 6/5
27/63 = 3/7 51/85 = 3/5 63/42 = 21/14 17/100 = 17/100
20/36 = 5/9 100/250 = 2/5
7*400)(грамм) :14(дней в 2-ух неделях)=200грамм сахара в день расходует семья
200:50=4(человека)-в семье
1)(7/8-1/4)-5/15=(7/8-2/8)-1/3=5/8-1/3=15/24-8/24=7/24
2)(5/9-1/3)-1/6=(5/9-3/9)-1/6=2/9-1/6=4/18-3/18=1/18
3)(13/18-1/4)-4/9=(26/36-9/36)-4/9=17/36-16/36=1/36
4)(3/4-5/12)-1/5=(9/12-5/12)-1/5=4/12-1/5=1/3-1/5=5/15-3/15=2/15
5)(7/10-2/15)-1/6=(21/30-4/30)-1/6=17/30-5/30=12/30=
2/5
6)(17/18-5/12)-2/9=(34/36-15/36)-2/9=19/36-8/36=11/36
A)
(-6Х*(5Х+5Х^4)-(5+20Х^3)
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(5Х+5Х^4)^2
б)
(1/cos√x)*(1/2√x)